Mathematics Middle School

What is the probability of the spinner landing on an odd number?

A spinner is split into 4 equal parts labeled 1, 2, 3, and 4.
One-fourth
One-third
One-half
Three-fourths

Answers

Answer 1

Answer:

1/2

Step-by-step explanation:

If there are 4 numbers 1 and 3 are odd numbers and 2 and 4 are even numbers. Therefore half of the numbers are odd.

Hope this helps

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Answer 2

Answer:

1\2

Step-by-step explanation:

Related Questions

There are 30 marbles in a bag. You randomly choose 20 marbles from the bag. The results are shown in the table. Predict the total number of red marbles.

Color
Blue 6
Red 12
Yellow 2
There are about how many red marbles?

Answers

Answer:

12 because if you add 6 and 12

Step-by-step explanation:

hope it helps uou !!

Answer:

It's 12

Step-by-step explanation:

hope it helps you !!

A pizza parlor charges $18 for a plain pizza and charges $0.75 for each additional topping.
Which of the following best models the cost of a pizza?
y = 18x +0.75
y = 13.5x + 18
y = 180.752
O y = 0.75x + 18

Answers

Answer:

the last one

Step-by-step explanation:

well you have 18 pizzas total, and each topping is 0.75. so let's say u want two toppings you would do 75 ×2 and so on, you would label the question

Y= 0.75x + 18

08.01 LC)

Find the solution of 3 times the square root of the quantity of x plus 5 equals negative 9 , and determine if it is an extraneous solution. (5 points)

Question 12 options:

1)

x = 4; not extraneous


2)

x = 4; extraneous


3)

x = 0; extraneous


4)

x = 0; not extraneous

Answers

Answer:

The solution is x=4.

BRAINLIEST  :)

It is not an extraneous solution.

You are wakeboarding on a river. You travel 2 miles downstream to a marina for supplies, and then you travel 3 miles upstream to a dock. The boat travels x miles per hour during the entire trip, and the river current is 3 miles per hour.

How long will the trip take when then speed of the boat is 18 miles per hour? Round to the nearest tenth minute.

Answers

Answer:

17.3

Step-by-step explanation:

(2+18)=(20mph*2miles)=6 minute

(18-2)=16mph*3miles=11.25

17.25

select the one answer. (x+5)-4y

Answers

Answer:

B) The sum of x and 5 subtracted by 4 times y.

Step-by-step explanation:

(x + 5) = the sum of x and 5

- = subtracted by

4y = 4 times y

"The sum of x and 5 subtracted by 4 times y).

B) is your answer.

~

Answer:

B/the second one

Step-by-step explanation:

What do you add to 2 2/9 to make 4

Answers

Answer:

I believe 1 7/9 will give you 4

1 and 7/9ths because 1+2 =3 and than add up the fractions that gives you another 1

The square of 9 less than a number is 3 less than the number. What is the number?
-12 or 7
-12 or -7
- 7 or 12
7 or 12

Answers

Answer:

Let the number be x, then (x - 9)^2 = x - 3

x^2 - 18x + 81 = x - 3

x^2 - 19x + 84 = 0

(x - 12)(x - 7) = 0

x = 12 or 7

Step-by-step explanation:

IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. If a certain statistician has an of 122 , what percent of the population has a lower IQ?
A. 47%
B. 93%
C. 22%
D. 99%
E. 7%

Answers

Answer:

B. 93%

Step-by-step explanation:

Find the z-score:

z = (x − μ) / σ

z = (122 − 100) / 15

z = 1.47

Find the probability using a calculator or z-score table.

P(Z < 1.47) = 0.93

help rsm 2.1/x+1 4/5=3/10x

Answers

Answer:

two minus one times .........

The solution to the equation is x = 7, -1.

What is a quadratic equation?

The equation of the form ax² + bx +c is known as a quadratic equation.

The given equation is 2.1/x + 1 (4/5) =(3/10)x.

Simplify the equation as follows:

2.1/x + 1 (4/5) =(3/10)x

2.1/x + 9/5 = (3/10)x

2.1 + (9/5)x = (3/10)x²

21 + 18x = 3x²

3x² - 18x -21 =0

3x² - 21x + 3x -21 =0

3x(x - 7) + 3(x - 7) =0

(x - 7)(3x + 3) =0

x - 7 =0 or 3x + 3 =0

x = 7 or x = -1

Hence, the solution to the equation is x = 7, -1.

Learn more about the quadratic equations:

https://brainly.com/question/17177510

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Which point is the centroid of the triangle?
Question 5 options:

A)

D

B)

G

C)

F

D)

C

Answers

Answer:

The answer is B) G

Step-by-step explanation:

G is at the center of the triangle. It is a centroid because it is where all the medians meet.

what is the answer to 6a-15< 2(3a+4)?

Answers

Answer:

3a<38

Step-by-step explanation:

how would you differentiate this problem using the quotient rule?

Answers

rewrite the square root of X as X^ 1/2. Then take the derivative. Since 1/3 is a constant with respect to X you can pull that out. So, you should have
1/3 d/dx [ (2x^2-x^5)/3x^1/2].

Then factor x^2 out of 2x^2-x^5.

Then by using the negative exponent rule you should have

1/3 d/dx [ x^2(2-x^3)x^-1/2 ]

Then multiply x^2 by x ^-1/2 by adding the exponents.

1/3 d/dx [ x^3/2 (2-x^3)]

Then differentiate.

You should get x^1/2 - (3x^7/2)/2.

I hope that helps.

A cylinder has a volume of 371.776 cubic centimeters. The diameter of the cylinder is 8 cm. What is the height of the cylinder? (Assume = 3.14)

Answers

Cylinder volume formula:

V=πr^2h

Substitute given values into the formula

Note: use 3.14 for pi

Diameter is twice the radius, so if diameter is 8 then radius is 4

371.776 = (3.14)(4^2)h

Use h for height because we don't know the height

Okay, so let's try to get the h by itself on the left side of the equation

So begin by getting rid of 3.14 by dividing it by both sides

371.776/3.14 = 118.4

3.14/3.14 = 1 (don't put 1, just remove the 3.14 from the right side)

So now we have:

118.4 = 4^2(h)

Now we can get rid of 4^2

Start by actually squaring it and then divide it from both sides

118.4 = 16(h) (4^2 = 16)

118.4/16 = 7.4

16/16 = 1 (dont put 1, just drop it)

So now we have

7.4 = h

Now we have h by itself! So h = 7.4

let's  test it by putting it in the cylinder volume formula

V = πr^2h

371.776 = (3.14)(4^2)(7.4)

371.776 = (3.14)(16)(7.4)

371.776 = 50.24(7.4)

371.776 = 371.776

7.4 is your answer, if you have any questions, feel free to ask

Complete the following​

Answers

First to find the missing measurement:
17-8 = 9

Perimeter = 57 (add all the sides)
Area = (7 x 8) + (9 x 16) = 200m^2

(it helps to split the shape into two parts)

What is the surface of a box 8“ x 7“ x 2“

Answers

Answer:

172 inches squared

Step-by-step explanation:

(8 x 7)2= 112

(7 x 2)2= 28

(8 x 2)2= 32

32 + 28+ 112

172 inches squared

Substitute x and y in the equation

Answers

B. y=50x

If you look at the graph, you can see that in each dot the y equals to 50 Times x.
Such at the first dot, the location is at (1,50). 1*50=50
And at the second dot the location is at (2,100). 50*2=100
And at the last dot, the location is at (8,400). 8*50=400

Why are the units of area squared? How does this help us remember the formula for area of a circle?

Answers

Answer:

Area is a size measurement of a two-dimensional surface. Those dimensions (x and y) are perpendicular to each other, and thats why it is squared.

Conor buys 75 tokens for games at the arcade. The price to play each game is 3 tokens. If Conor has already played x games, which expression is equivalent to the number of tokens that remain?

A. 3x – 75
B. 3(25 – x)
C. 3(25 + x)
D. 75 + 3x

Answers

Answer:

B

Step-by-step explanation:

He didn't get more tokens, so it cannot be D or C, and 3x-75 is simply not true if, for example, he played 2 games.

Pleae mark as Brainliest! :)

Have a nice day.

The value of expression is equivalent to the number of tokens that remain is,

⇒ 3(25 - x)

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

Conor buys 75 tokens for games at the arcade.\

And, The price to play each game is 3 tokens.

Here, Conor has already played x games.

Hence, The value of expression is equivalent to the number of tokens that remain is,

⇒ 75 - 3x

⇒ 3 (25 - x)

Thus, The value of expression is equivalent to the number of tokens that remain is,

⇒ 3(25 - x)

Learn more about the mathematical expression visit:

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Help asap please ! Please explain too

Answers

Answer:

D) 35

Step-by-step explanation:

angles that are opposite are equal, so the 45 degree angles is in th triangle too. angles on a straight lines are equal to 180, so 180 - 80 = 100.

So far we have two of the angles, 100+45=145

Angles in a triangle are equal to 180, so 180-145 =35

vertically opposite angles are the same, so the ? is 35 degrees

Hope that helps

Lily wants to buy a new smartphone. She has $500 to spend. List three ways she can get a good deal.

Answers

Answer:

get a coupon find a cheap on or steal it or get a discount

Answer:

She could use coupon deals, she could research what stores have it cheapest, see what deals online has

3. Fine the value of x.
A) 3.5
B)7
C) 5
D)10

Answers

Answer:

I would say B

Step-by-step explanation:

I think

I would think the sender was b

2 points
Cindy is painting her house. She paints 34 1/2 square feet in 3/4 hour. At
this rate, how many square feet can she paint each hour? *

Answers

Answer:

102 sqaure feet                                                      

Step-by-step explanation:

The price of a car is £15400 before it is reduced by 8%.
How much does it cost after the reduction?

Answers

Answer:

14168

Step-by-step explanation:

15400 / 100 x 8 = 1232

1232 = 8%

15400 - 1232 = 14168

Determine the center and radius of the following circle equation:
x² + y² - 10x + 20y + 89 = 0

Answers

Answer:

The center is ( -5, -10) and the radius = 6.

Step-by-step explanation:

Convert the equation to standard form by completing the square;

x^2 + y^2 - 10x + 20y + 89 = 0

x^2 + y^2 - 10x + 20y  = -89

x^2 - 10x + y^2  + 20y  = -89   Completing the square:

(x + 5)^2 - 25 + (y + 10)^2 - 100 = -89

(x + 5)^2 + (y + 10)^2 = -89  + 125

(x + 5)^2 + (y + 10)^2 =  36

Comparing this to the standard form:

( x - h)^2 + (y - k)^2 = r^2

- we see that the center is ( -5, -10) and the radius = 6.

The figure is made of rectangular prisms. What is the volume?

Answers

Answer:

So the first step is to do times the l that is 18 then times the width that is 6 after that times the height that is 12. The other number is from the other side so you have to times the other number too. So the answer will be c.

Step-by-step explanation:

As we the the formula for a rectangular prism is l*w*h

Answer:

2,160cm³

Step-by-step explanation:

Good luck kiddos :)

need answer as soon as possible

Answers

Answer:

I(n)=(n4)+−5n3+45n2−70n+2424⋅δ2(n)

−3n2⋅δ4(n)+−45n2+262n6⋅δ6(n)+42δ12(n)

+60n⋅δ18(n+35n⋅δ24(n)−38n⋅δ30(n)  

−82n⋅δ42(n)−330n⋅δ60(n)−144n⋅δ84(n)

R(n)=n4−6n3+23n2−42n+2424

+−5n3+42n2−40n−4848⋅δ2(n)−3n4⋅δ4(n)

+53n2+310n12⋅δ6(n)+49n2⋅δ12(n)

+32n⋅δ18(n)+19n⋅δ24(n)−36n⋅δ30(n)

−50n⋅δ42(n)−190n⋅δ60(n)−78n⋅δ84(n)

−48n⋅δ90(n)−78n⋅δ120(n)−48n⋅δ210(n)

Step-by-step explanation:

The figure below is a net for a rectangular prism. Side a = 22 inches, side b = 18 inches, and side c = 11 inches. What is the surface area of this figure?
A. 1,430 square inches
B. 1,672 square inches
C. 4,356 square inches
D. 836 square inches

Answers

the answer is b. 1672

Which phrase describes the pattern? 1, 3, 11, 123,...
A) add 2
B) add 8
C) multiply by 3
D) square the number and add 2
E) square the number and subtract 2

Answers

D) square the number and add 2
Square the number and add two

Another khan academy question

Answers

First off, notice that this is a right triangle.

You can use this to help write equation.

Equation : x+ (4x-85)=90. The correct answer is "c"

Hgxbxhdhdhdjc Nc FDA faces have

Factor. 125x^3-64y^3

Answers

Answer:

= 5x - 4y

Step-by-step explanation:

125x³- 64y³

= 5x - 4y

Answer:

Hello,

(5x)^3 - (4y)^3

Step-by-step explanation:

125 = 5^3

64 = 4^3

125 x^3 - 64 y^3 = (5x)^3 - (4y)^3

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